Traction-plow.



H. W. KARDELL TRACTION PLOW.

APPLICATION FILED JUNE 25, 1914.

atented Apr. 10, 1917. 3 SHEETS-SHEET I H. W. KARDELL.

TRACTION PLOW.

APPLICATION FILED JUNE 2511914. gggn ggg Patenaed Apr. 10 191?: Q: 3SHEETS-SHEET 2- H. W. KARDELL.

TRACTION PLOW.

APPLICATION FILED JUNE 25. 1914.

7M. 1 9 1 0 1 R p A d 6 b n Au t a D1 3 SHEETS-SHEET 3.

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THACTIOIQ PLGW.

Specification of Letters Patent.

Patented Apr. "Ml, ignite.

@riginal application filed may 23, 1913, Serial No. 769,356. l'livizledand this application filed June 25, rem. Serial No..8 ;7,3d6.

To all wlwm it may concern:

Be it known that. I, HENRY W. :KARDELL, a citizen of the United Statesof America, and a resident of the city of fit. Louis and State ofMissouri, have invented certain new and useful Improvements inflraction- Plows, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart of this specification.

My invention relates to a traction plow and has for its object theproduction of a plow lifting device operable by the engine or motor ofthe tractor. The invention also includes certain features found in amanually operable plow lifting device, the latter being, to a certainextent, under the control of the first named lifting device.

This application is a division of the application for patent filed by meMay 23, 1913, Serial No. 769,356, tractors.

Figure l is a top or plan view of a traction plow, embodying thefeatures of my inven tion, the front and rear ends of the tractor beingbroken away.

Fig. H is a side elevation showing the plows and plow carrying devicesattached to a portion of the tractor frame, and the lifting devices forlifting the plows.

Fig. H1 is a diagrammatical view.-

The tractor of my traction plow includes a pair of front ground wheels 1secured to an axle 2, the ground wheels bein supplied with suitablemeans such as sproc ret wheels 3, to which power is transmitted toimpart rotation to the said ground wheels from the engine of thetractor, as will hereinafter more fully appear. The tractor framecoinprises longitudinal side beams 1 and 4' ex tending from front to}rear of the frame, and also comprises suitable cross members unit ingsaid beams. The tractor frame is supported at its rear end, when thetractor is utilized as a draft medium for my plow, by wheel 5, which maybe operated 15 designates a jack shaft operable by the engine 14. Thisjack shaft extends transversely of the tractor and is journaled to theside beams L and i of the tractor frame. The jack shaft serves as a.medium for driw ing the ground wheels 1 and, as convenient means oftransmitting power from said jack shaft to said ground wheels, I mountupon said jack shaft, adjacent its ends, sprocket wheels 16 that receiveendless drive chains 17 operable on the sprocket wheels 3.

Before proceeding to a description of the plow elements carried by thetractor, I will enumerate the parts carried by the tractor frame andthrough the medium of which the plow frame and plow proper, or plowsproper when the latter are used in gang, are supported and adjustedaccording to requirements.

18' and 19 designate, respectively, forward and rear transverse rockshafts journaled to the side beams of the tractor frame. These rockshafts are provided, respectively, with crank arms 18 and 19, operableto raise and lower one side of the plow frame.

26 is a transverse rock shaft journaled to the tractor frame and ldcatedintermediate of the rock shafts l8 and 19. This roclr shaft is providedwith a crank arm 27 ioined by a link 28 to a pivotally supportedmanually operable lever 29, provided with a latch bolt 30 that engages atoothed quadrant 31.

'36 is a transverse rock shaft journaled to the tractor frame andprovided with a pedal 37. The utility of this rock shaft will behereinafter set forth.

38 are hangers depending from the longi- T tudinal side beams i of thetractor frame and by which the plow frame aboutto be described issupported at one of its sides.

The plow frame, designated in the drawings, is a rectangular structurecomrising side bars 39 and 40, a front end 41, and rear and bars pendedbeneath the tracter a naaaaee the transverse rock shafts 18 and 19 andhanger links 47 and 48 having pivotal connection at their ends with saidlever arms and with the side bar 40 of the plow frame- A. Thisconstructionpermits of the plow frame A bein raised or lowered at theside at which the rame side bar 40 is located, the hangers 38 serving assupporting members for the frame during the raising and loweringmovements, accomplished through the medium of the rock shafts 18 and 19and parts, (not shown), coiiperable therewith. I have herein shown myplow as including a plurality of plows proper arranged in gang and willin the description hereinafter given describe a gang plow structure withthe understanding that I do not limit myself to the use of anyparticular plows proper. The plows proper herein shown are arranged in aparallel series, and comprise the usual mold boards 419, shares 50, andbeams 51, the latter being united at their forward ends by a crossconnection 52. The plow beams 51 are pivotally' connected at theirforward endsto the side bars 39 and 40 of the plow frame A by a U shapedstirrup 53, the arms of which are journaled to the side bars of the plowframe at 54. The plow beams are also pivotally connected to the sidebars of the plow frame by a rear-stirrup 55 of U-shape, the arms 56 ofwhich are provided with screw threaded ends 57 extending through pivotblocks 58 pivoted to the side bars of the low frame and bearing frontand rear adusting nuts 59. By making the rear stirrup as described, andproviding the adjustable connection between the arms of the stirrup andthe pivot blocks fitted to the side bars of the plow frame, I am enabledto lengthen or shorten the stirrup arms, between the pivot blocks 58 andthe points of connectlon of the stirrup to the plow beams, so that therear portions of said beams may, if desired, be caused to swing in aless or greater are than the front ends of the beams, thereby raising orlowering the heels of the plow, permitting more or less penetration, asconditions of the soil may require.

Referring now to Fig, II, it will be noted that the plows proper andplow beams 51 are supported by the U-shaped stirrups 53 and 55, and thattherear stirrup 55 is adjustably supported by the hanger link 61. Thecombined weight of the plows and plow beams tends to move the stirrup 53downwardly. This weight is counterbalanced by a spring 95 connecting anarm -96 on the stirrup 53 to an arm 97 on the plow frame A.

The plows proper and the plow frame of my traction p ow are adapted tobe elevated and lowered by manualoperation of the lever 29 hereinbeforementioned, and they are also adapted to be elevated by power derivedfrom the engine of the tractor, but I will at present describe only themechanism for the manulal operation. This mechanism includes the rockshaft 26 and the lever 29, a link 28 connected to said rock shaft, alever arm 60 fixed to said rock shaft, and a lift rod 61 pivoted to saidlever arm at its upper end and loosely fitted at its lower end to therear stirrup 55. It will be appreciated that, when the upper end of thelever 29 is thrown rearwardly and the lower end is thrown forwardly, thestirrups 53 and 55 and the plows proper will be elevated. To lower theplows proper, it is only necessary to move the lever 29 to the desireddegree in the opposite direction and the parts will move downwardly.

Thelatch bolt 30 carried by the lifting lever 29 is normally interlockedwith the quadrant 31 so asto hold the plows at the de sired elevation.When the lifting power is derived from the jack shaft 15, it isnecessary to disengage the latch bolt from the quadrant, therebyunlocking the plow holding means and permitting the plows to be liftedthrough the medium of a lifting cable 74, attached to a plow beam51.

I will now describe the means for unlocking the liftin lever 29 from thequadrant 31 and therea ter liftin the plows by power from the jackshaft. he lifting cable 74 leads from a plow beam 51 upwardly over apulley 75, horizontally around a pulley 76 on the tractor beam 1 andfrom thence to a winding drum 77, the end of the cable being secured tothe winding drum. The winding drum is slidably fitted to a bearingsleeve 78 through which the jack shaft 15 passes.

79 designates a drive clutch member secured to the end of the jackshaft, and 80 is an expansible clutch member arranged within the driveclutch member 79. The expansible clutch member 80 is connected to thewinding drum 77 by links 81.

82 designates a clutch throwing lever, pivoted at 83 to the tractor beam1 and fitted to an annularv groove 84 in the winding drum 77 The clutchthrowing lever 82 may be operated to slide the winding drum along thebearing sleeve 78, thereby expanding the inner clutch member 80, andfrictionally engaging said member 80 with the drive clutch member 79.This operation will cause the winding drum 77 to rotate with the jackshaft 15, with the result of winding the cable 74 onto the drum 77 tolift the plows from the ground.

The means for operating the clutch throwing lever 82 comprises the rockshaft 36 extending across the tractor and provided with a foot pedal 37.An arm 87 secured to the rock shaft 36 is connected to the clutchthrowing lever 82 by a cable 88. When the pedal 37 is depressed, theshaft drum 77 "toward the drive clutch member naeaeee 79. Before thewinding drum is coupled to the drive clutch member, the lifting lever 29is released from the quadrant 31 to permit the plows to be elevated bythe lifting cable 74:.

The means for automatically releasing the lifting lever 29 comprises anarm 89 secured to the pedal shaft 36, a bell crank lever 90 and a throwbar 91 connecting the arm 89 to the bell crank lever 90. The latch bolt30 carried by the lifting lever 29 isprovided with an extension 30 whichlies directly above the long arm of the bell crank lever 90. When thepedal 37 is depressed, and before the winding drum 77 starts to rotate,the bell crank lever 90 moves to disengage the latch bolt30 from thequadrant 31, thereby releasing the plows and permitting them to belifted by the cable 74.

The expanding clutch member 80 is auto matically disengaged from thedrive clutch member 79 to stop the winding operation after the plowshave been lifted a predetermined distance. To accom lish this, theclutch throwing lever 82 is oriiied with an arm 93 through whichmthecable 74 passes, and'said cable is p'r'ovided with a yieldable abutment94 adapted to engage the arm 93,

- with the result of rocking the clutch throwbcr 79. 1

ing lever 82 o as to disenga e the expanding clutch ember 80 from t edrive memllaimzt 1. lln a plow, the combination of a frame, a plowmember pivotally mounted with respect to the frame, an adjustable plowholding device mounted on the frame forming a support for the plowmember, including means for locking the plow holding device to preventthe plow member from being, lifted, a power shaft, a plow lifting deviceseparate from said plow holding device, a rock-shaft, means operablyconnected to the rock-shaft for unlocking the plow holding .device, anda shifter operably connected to the rock-shaft to couple the plowlifting device to the power shaft after the plow holding device has beenunlocked.

2. In a plow, the combination of a frame, a plow member pivotallymounted with respect to the frame, an adjustable plow holding devicemounted on the frame forming a support for the plow member, includingmeans for locking the plow holding device to prevent the plow memberfrom being lifted, a power shaft, a plow lifting device separate fromsaid plow holding device, a lever-operated rock-shaft, means operablyconnected to the rock-shaft for unlocking the plow holding device andembodying a ivoted crank lever, means for coupling the power shaft tothe plow lifting device, and means for transmitting movement from therock-shaft to the coupling means so as to unlock the plow holding deviceand thereafter couple the power shaft to the plow liftin device. 7

3. fa a plow, the combination of a frame, a plow member pivotallymounted with respect to the frame, an adjustable plow holding devicemounted on the frame forming a support for the plow member, includingmeans for locking the plow holdin device to prevent the plow member frombemg lifted, a power shaft, a drive clutch member secured to the powershaft, a plow lifting device including a driven clutch member adapted toengage the drive clutch member to provide for the transmission of powerfrom the power shaft to the plow lifting device, a clutch shifter foractuating the 1 driven clutch member, a lever-operated reckshaft, areleasing device for unlocking the plow holding device; means fortransmitting movement from the rock shaft to the releasing device tounlock the plow holding device and means for transmitting movement fromthe rock shaft to the clutch shifter so asto couple the clutch membersaft/3r the releasing device has been actuate 4. lln a plow, thecombination of a frame, a plow member pivotally mounted with respect tothe frame, an adjustable plow holding device mounted on the frame formng a support for the plow member, including means for locking the plowholding device to prevent the plow member from being lifted, a powershaft, a drive clutch member secured to the power shaft, alever-operated ,rock-sbaft, a releasing device for unlocking the plowholding device, means. for transmittmg movement from the rock-shaft tothe releasing device, and a plow lifting device including a drivenclutch member adapted to engage said drive clutch member, a' windingdrum operable by the driven clutch member, a flexible member connectedto the pfbw member and adapted, to be wound onto the drum to lift theplow memher and a clutch shifter for actuating the driven clutch member;and means for transmitting movement from the rock shaft to the clutchshifter to provide for the transmission of power to the winding drum andflexible member after the releasing device has been actuated.

rmnnr w. KARDELL.

In the resence of- M. Areas, A. J. McCan'nnr,

lttlfi Ztllti

